Road-surfacing machine



Feb. 10, 1925.

1,526,221 A. J. JULSON ROAD SURFACING MACHINE Filed 1, 1924 4 Sheets-Sheet 1 I NV EN TOR.

A1 Julson,

A TTORNE Y.

Feb. 10. 1925. 1,526,221

A.YJ. JULSON ROAD SURFACING MACHINE Filed July 1, 1924 4 Sheets-Sheet 2 up: A

YINVENTOR. 11.1 @Zson,

' ATTORNEY.

Feb. 10. 1925.

I A. J. JULSON ROAD' SURFACING MACHINE Filed Jply l, 1924 4 Sheets-Sheet 4 m0, 5:55... at

/Ill!! A TTORN E Y.

Patented Feb. 10, 19255.

ALBERT J. JULSON, O SIOUX FALLS, SOUTH DAKOTA.

BOAIUEURFACING MACHINE,

Application filed July 1,

To all whom it may concern:

. Be it known that I, ALBERT J. JULsoN, a citizen of the United States, residing at bliouii Falls, in the county of Minnehaha and State of SouthDakota, have invented certain new and useful Improvements in Road- Surfacing Machines, of which the following is a specification.

This invention relates to a road surfacing machine and has for its object to provide a machine of such class, in a manner as hereinafter set forth, with. means for surfacing highways upon which gravel, crushed rock, or other material has been spread, as well as for re-surtacing the highway where the action of traffic has displaced the surfacing material in, such a, manner as to necessitate the gathering of the loose surfacing materials troin a distance to each side ot the road center and returning the same to such disposition as will give the highway a drainage slope from the center, or a flat center of a desired width and with the same operation produce a drainage slope to the two sides of the road, to the right and left of the desired flat center.

A. further object of the invention is to PiOVidG a machine of the class referred to and in a manner as hereinafter set forth, whereby the machine will be of light draft and can be operated at higher than usual speed for machines doing the same character of work, and further a machine that can be turned square around in comparatively narrow road ways.

Further objects oi the invention are to providea road surfacing machine, in a manner as hereinafter set forth, which is comfiaratively simple in its construction and arflangeiiient, strong, durable, compact, adjustable, thoroughly eiiicient and convenient in its use, readily assembled and comparatively inexpensive to set up.

lVith the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically describedand illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

1924. SeriaLNo. 723,561.

In the drawings wherein like reference characters denote corresponding parts throughout the several 1 views Figure 1 is a top plan view of a road surfacing machine in accordance with this iiivention.

Figure 2 is a side elevation thereof.

Figure 3 is a section on line 33, Figure 2. V

Figure 4C is a section on line l l, Fig 3.

Figure 5 is a section on line 5-5, Figure 3.

Figure 6 is a section on line 66, Figure 2.

Figure 7 is a section on line 77, Figure 2. V

-Figure 8 is a section on line'88, Fig ure 7. i

Figure 9 is a section on line 99, Figure7.

Figure 10 is a section on line 1-0-10, Figure 2..

Figure elevation member.

Figure 12 is a section on line 1212, Figure 11.

Figure 13 is a fragmentary view of one of the strut bars showing the adjustable stop collar therefor.

Referring to the drawings in detail, the machine comprises a body portion in the form of a triangular-shaped frame consisting of a pair ot side bars 15, 16, and an end bar 17 formed of channel irons and with the rear bar 17 secured to the side bars 15 and 16, in any. suitable manner. The side bars 15 and 16 are of substantial length and extend towards each other at an inclination and at their forward ends are secured together as well as maintained in 11 is a fragmentary view in rear of the. tail board or distributing spaced relation by upper and lower coupling plates 18, 19, welded or otherwise secured to the side bars 15, 16. The side edges of the plates 18, 19 are flush with the outer edges of the bars 15, 16 and the forward ends of the plates 18 and 19 are flush with the forward ends of the bars 15, 16. i Extending between the forward ends of the bars 15, 16, and connected to the plates 18, 19, by the hold-fast devices 20, is a forwardly extending coupling bar 21, which is employed for connecting the machine with a suitable traction means therefor.

The body portion of the machine further includes a platform 22, which is secured in any suitable manner to the lower faces of the bars 15. 16 and 17, and the platform 22 preferably is of a length less than half the length of the bars 15, 1G.

Secured to the lower face of the bars 15, 16, at a point between the transverse center and the rear ends of said bars, is an upper bolster bar 23, which projects latcr ally, a substantial distance, from each oi the bars 15, 16. The bar 23 is in the form of an inverted channel iron and has GK- tending thereinto, centrally thereof, as well as being secured therewith, a bolster brace member consisting of a central flat portion 2a, a pair of oppositely extending outwardly inclined depending portions 25, 26, and a pair of oppositely extending end portions 27 disposed in a plane parallel to the plane of the central portion 24. The end portions 27 are arranged below and spaced from the ends of the holster bar The cent 'al portion 2st of the brace member is secured to the bolster bar by the holdfast devices 28.

The major part of the weight carried by the body portion is borne upon the wheels 29 of the machine and which are connected with the bolster. Extending down through each end of the bolster bar 23 is a pin of substantial length and said pins are indicated at 30, 31 and the former provides a pivot for a knuckle 32 and the latter for a knuckle 33. The knuckles 32 and 33 extend from the bolster bar 23 to the end portions 27 of the brace member referred to. The knuckle 32, intermediate its ends, is formed with a quadrant shaped extension 3%, which projects inwardly, and the knuckle 33 is provided with a quadrant shaped extension 35, which also extends inwardly. Each oi the extensions 34, 35 is peripherally grooved, as at 36. Each of the knuckles is further- 1016 provided with a laterally projecting spindle 37 for a wheel 29.

The pins 30 and 31 project a substantial distance above the bolster bar 23 and each is provided with a stop collar 38 and a head 39, which bears against the collar 38. Each of the pins 30 and 31 extends down through the end portions 27 of the brace member and also through the lower bolster bar or what may be termed connecting bar l0, upon which is seated the end portions 27 of the brace member. The lower end of each of the pins 30 and 31 is provided with a cotter pin 4-1, which bears against the connecting bar 40. The heads 39 and pins i1 prevent vertical movement of the pins 30, 31 with respect to the knuckles 32 and 33.

The extensions 34 and 35 project forwardly and rearwardly with respect to the knuckles and 33 and the said extensions f-B- and 35 are connected together by a pair of rods 4-2. The former has its ends pivoted to the extensions and 35, as at it. respectively, and the latter has its ends pivotally connected to the extensions 34, 35, as at l6, 4? respectively. The rods 42 and 43 are provided to cause the synchronous shifting of the knuckles 34, duriz' the steering operation of the ma chine.

Secured upon the top of the bars and 1-3. forwardly with respect to the bolster bar 23. is a transversely extending suppor ing plate 13. which projects laterally from said bars 15. 1G. Depending 't'rom the plate l3. approximately centrally thereof, is a hanger 11), provided at its lower end with a pair ol' spaced bearings 50, 51, disposed at an angle with respect thereto. The hanger in 4-9 is secured to the plate 1-8 by the hold-tast dcfit'es extending through a flange 53. at the upper end of the hanger 49.

lf ecurcd to the side bar 15, as well as depending therefrom is a bearing bracket 54. which opposes a hearing bracket secured to and depending from the side bar 16. rlournalcd in the brackets 51, 55, forwardly with iCSlJPtt to the hanger 49. is a shaft 56 provided with a pair of drums 57, ll'indine on and oil of the drum 5? is a steer- (1 55?, and winding on and oil the is :1 steering cable 60. The cables operate in alternate directions with respect to each other, that is to say when the c JiO 59 winds oil the drum 5'? the cable (it) winds on the drum Fixed to th shaft is a worm gear (51, which is one. u l and operated by a worm 62, car riea on the lower end of a steering post (33. which is journaled in the bearings 50 and The post (33 extends rearwardly at an incl nation and above the platform 22 and proje ts through a bearing (34:, carried by an upwardly extending and 'l'orwardly inclined skeleton brace (35, which is secured to the side bars 15 and 16 and is also formed with a pair of bearings (i6, (i7, tor a purpose to he presently referred to. The steering post ($3, at its upper end has attached thereto a hand wheel (33.

The cable is secured to the rear side of the quadrant shaped extension and arranged in the groove 3b, and the cable (30 is secured to the rear side of the quadrant shaped extension 3- 1- and in the groove 33 thereo't.

Secured to and depending from the side lr rs 15, 16, forwardly of and a sul'ist-antial distance from the plate :3. is a bracket (53. 'ilhat bracket cs. which depends from the side bar 15 has revolvably mounted therein a grooved pulley 69, and that bracket which depends from the bar 16 has revolvably mounted therein a grooved pulley 70. The cable 59 travels around the pulley 69, and the cable 60 travels around the pulley 70.

hen the shaft 56 is revolved in a clockwise direction the cable 59 winds on the drum 58 and the cable 57 unwinds from the cable 58, and when the shaft 56 is revolved in an anti-clockwise direction the cable 60 winds on the drum 58 and the cable 59 unwinds from the drum 57. From this arrangement, it is obvious that the machine can be steered in the desired direction, depending upon the direction the steering post is revolved.

The machine includes a pair of outwardly extending and oppositely inclined grader or planer elements, one referred to generally by the reference character 71 and the other by the reference character 72. Each of said elements consists of a horizontally disposed I-beam 73 of substantial length having secured to its inner side a grader, gathering, surfacing or planer blade 74, which depends from the I-beam 73. The blade 74 has its top edge flush with the beam 7 3. The height of the blade 74 is substantially twice as great as the height of the beam when the latter is horizontally disposed, and as the top edge of the blade is flush with the top of the beam, when the latter is horizontally disposed the beam braces or reinforces the upper half of the blade whereby the lower half thereof is somewhat resilient.

The beam 73 of the element 71. inter mediate its ends and forwardly with respect to the bolster bar 23 has secured to its upper face a keeper 75 and to said beam and keeper 75 is connected a pivot 76 for the lower end 77 of an inwardly extending and upwardly inclined strut rod 78, which is slidably mounted in a depending apertured bracket 79 secured to and depending from the side bar 16. i

The beam 7 3 of the element 72, intermediate its ends and forwardly with respect to the bolster bar 23, has secured to its upper face a keeper 80, and to said beam and keeper 80 is connected a pivot 81 for the lower end 82 of an inwardly extending and upwardly inclined strut rod 83, which is slidably mounted in a depending apertured bracket 84-. secured to and depending from the side bar 15. i

The elements 71 and 72 are set up so that they can be elevated and lowered and also moved towards and away from each other, and the said elements 71, 72 have their rear ends universally coupled with a flat connecting bar 85. Each end of the bar 85 is pivotally connected, as at 86. to an angle iron 87, the pivot being a vertical one. The angle iron 87 is pivotally connected, as at 88, to an eyebolt 89, secured to the rear end of an I-beam 73, the pivot 88being a horizontal one. This universal pivot connection is clearly shown in Figure 3 and provides for the vertical adjustment of the elements 71, 72, as well as the lateral adjustment of saideleinents with respect to each other.

Secured upon the side bars 15, 16, forwardly with respect to the plate 48, is a transversely extending angle-shaped support 90, which projects laterally a substantial distance from the side bars 15, 16 and which is reinforced by a brace member 91, secured to uprights 92, fixed to the bars 15, 16 and further tortionally twisted. and having its ends secured, as at to the support 90. Projecting rearwardly from, as well as being swivelly connected. to the support 90, is a pair of brackets 94, 95, and the former has connected therewith a revolvable grooved pulley 96 and the latter a revolvably grooved pulley 97. The pulleys 96 and 97 revolve upon a vertical axis. Projecting rearwardly from the support 90, at each end thereof. is a stub shaft, and said shafts are indicated at 98, 99 and have mounted thereon grooved pulleys 100 and 101 respectively. The pulleys 100 and 101 revolve on a horizontal axis. Cotter pins 102 are provided for maintaining the pulleys on the stub shafts 98, 99.

'lravelling over the pulleys 96 and 100 is a combined suspending and elevating cable 102 for the element 72, and travelling over the pulleys 97 and 101 is a combined suspension and elevating cable for the element 71. The li-beain 73 of the element 71 or the element 72 is provided with an eye-bolt to which the suspending and adj usting cable 103 is attached. The eyebolt is indicated at 104 and is best shown in Figure 2.

The cables 102 and 103 are independently adjustable and the adjusting means therefor will now be referred to. Secured to the plate 48, centrally thereof. is a bearing 105. and at one end of the plate 48 is secured a bearing 106 and at its other end a bearing 107. Revolvably mounted in the bearings .105 and 106 is a shaft 108, provided with a drum 109 on which the cable 103 winds off and on. The shaft 108 is extended from the bearing 106 and carries a worm gear 110. Journaled in the bearings 105 and 107 is a shaft 111 provided with a drum 112. on which the cable 102 winds on and off. The shaft 111 project outwardly from the bearing 107 and carries a worm gear 113. Secured to and depending from each end of the plate 48 is a hanger 114, having its lower end provided with a pair of angularly disposed spaced bearings 115, 116.

Extending through the bearing 66 and mounted at its lower end in one of the pairs of bearings 115 and 116 is a manually operated actuating rod 117 for the worm gear 11.0. The lower endof the rod 117 is provided with aworrn 118 which meshes with the worm gear 110, so that when the rod 117 is operated the shaft 108 will be revolved through the actuation of the gear 110, whereby the cable 103 will wind. on or off the drum 109, depending in which direction the shaft 108 is revolved.

Extending through the bearing 67 and mounted at its lower end in the other pair of bearings 115, 116, is a manually operated actuating rod 119 for the worm gear 113. The lower end of the rod 119 is provided with a worm 126, which meshes with the worm gear 113, so that when the rod 119 is operated the shaft 111 will be revolved through the actuation of the gear 113, whereby the cable 102 will wind on or off the drum 112, depending in which direction the shaft 111 is revolved.

The rod 117, as well as the rod 119, is provided at its upper end with a hand wheel 120.

Each of the strut bars 78 or 83 is pro vided with an adjustable collar 121 constituting a stop, and said collars bear against the brackets 79 and 81 so that the angle of the strain transmitted from the elements 71 and 72 to the brackets will be less than it would be if the bearing be at the elevation of the frame as shown.

The tail board or distributing member consists of an angle-shaped blade 122 standing on edge and which is of substantial height. The vertical leg of the blade 122 is of materially greater height than the width of the horizontal leg, indicated at 123. See Figure 12. The blade 122 is vertically and angularly adjustable. Secured to the rear face of. the blade 122, by the hold-fast devices 124, is a flanged casting 125, formed with a vertically disposed opening 126. The rear portion of the casting 125 is overlapped by the leg 123 of the blade 122. The casting 125 is of less height than the height of the blade 122.

The connecting bar has its upper face provided with a pair of spaced angle irons 127 to which the inclined arms 128 of an extension member 129 are pivotally connected, as at 130. The member 129 projects rear- "ardly from the bar 85 and the arms 128 of said member incline towards each other in a direction from the bar 85. The arms 128 merge at their rear ends into a flat rectangular projection 131, formed with a depending L-shaped extension into which projects the casting 125. The projection 131, as well as the bottom of the extension 132, is apertured, as at 133, 1341 respectively, and the said apertures align with the opening 126. Extending through said aligning opening and apertures is a headed pivot 135, which depends from the extension 132 and is provided with a cotter pin 136. The pivot 135 in connection With the casting 125, projection 131 and extension 132, provides means for pivotally connecting the blade 122 to the extension member 129.

Secured to the upper face of the 1)l-)j0r tion 131, by the hold-fast devices 137, is a U- shaped bracket 138 carrying a pivot 139 for the enlarged lower end of a spring controlled holding down bar 141 for the blade 122.

Secured to and projecting upwardly from the rear bar 17 of the body portion of the machine a pair of arms 14-2, having their upper ends constructed to provide rearwardly extending bearings 113 for an adjusting shaft 144, for the rod 1-1-1. One end of th shaft 1 1 4: has fixed thereto a collar 1 15, having projecting therefrom an angleshaped crank arm 116, which terminates in a yoke 14 7, having arranged therein a block 148 pivotally connected to the yoke 1417, as at 1&9. Extending through the block 118 is the rod 1411. Adjustably secured to the rod 111 is a stop collar 150, and interposed be tween the latter and the block 148, as well as surrounding the rod 141, is a coiled controlling spring 151 for the rod 111.

The extension member 129 is swung upwardly on its pivots by the operation of the shaft 1414 and when said member is swung upwardly the blade 122 is carried therewith. direction through the medium of a lever 157 fixed to the shaft 144. hen the lever 157 is moved forwardly the bracket 1 17 will carry the rod 141 upwardly therewith and said rod 1 11 will swing the member 129 upwardly on its pivots 130.

The construction described with respect to the blade 122 permits of adjusting the blade 122 on the pivot pin and furthermore permits of the pivoting of the extension member 129 on the connecting bar 85 when it is desired to elevate and lower the blade 122. The shifting of the blade 122 on its pivot 135, as well as maintaining it in its adjusted position. is had through the medium of a pair of chains 152, which are connected, as at 153, to the blade 122 and adjustably connected to the hooks 15s carried by the connecting bar 85. By shortening one and lengthening the other chain 152, the .7

blade can be adjusted upon its pivot 135 and maintained in such position. The chains 152 in connection with the hooks 15% provide means for maintaining the blade 122 in the position to which it has been set.

The tension of the spring 151 is increased or decreased through the shifting of the shaft 144, and after the spring has been set to the desired de ree of tension it is maintained in such position by locking the shaft 144 from movement. For this purpose a toothed rack 155 is secured to one of the arms 1 1-2 and cooperating therewith The shaft 144 is rocked in either llll) is a locking dog 156, which is releasably carried by the lever 157 fixed at its lower end, as at 158 to the shaft 1 1 1.

The rearward ends of grade elements 71 and 72 are elevated through the medium of an upwardly disposed elevating and lowering chain 159 secured at its lower end to an eyebolt 160, carried by the connecting bar 85. The chain 159 extends forwardly. of the end bar 17 and is adapted to Wind on and off a drum 161, which is fixed to a shaft 162, as at 163.

Connectedto the bar 17 and extending upwardly therefrom is a standard 164 having anangle-shaped extension 165 projecting forwardly from and opposing its upper end. The shaft 162 is journaled in the standard 16 1 and extension 165, as well as projecting forwardly from the extension 165 and is provided with a hand wheel 166. The drum 161 is provided with a ratchet 167 engaged by a nose 168, carried by an outwardly projecting lever arm 169,. which is pivoted, as at 170, to the standard 164. The nose 168 when in engagement with the ratchet 167 preventsback rotation of the shaft 162.

Secured to the platform 122 is a seat post 171, in which is mounted a resiliently supported swivelled seat 172, to enable the operator to conveniently reach the hand wheels 68, 120 and 166.

Brace members 173 are secured to the connecting bar 40 and the side bars 15 and 16. These brace members extend at an upward inclination and forwardly with respect to the bar 40.

Diagonally disposed brace members 17 1-, which cross each other and are connected together, at the center thereof, as at 175, are secured to the connecting bars 10 and The setting up of the knuckles 32 and 33, and their operating means in the manner as stated, the machine can be caused to travel to either side of the line of draft of the traction means therefor and thus work otherwise in accessible positions and maneuver in restricted quarters.

hen the elements 71 and 72 are adjusted laterally, Or rather towards and away from each other, the cables 102 and 108 are moved from off the pulleys 100, 101. j

The adjusting chains 152 for the blade 122 enable the lateral disposition of the gathered material to be so governed that the same may be spread directly behind the center of the machine or whereby the blade 122 can be adjusted so as to displace the material as collected to either side of the center line of travel of the machine and to the extent desired.

The elements 71 and 72 provide means for gathering the loose surfacing materials during the forward travel of the machine from a distance to each side of the road center, and the blade 122 returns said gathered material in a manner as to give theslope desired. from the center of the road or from the flat center of the desired width.

It is thought that the many advantages of a road surfacing machine in accordance with this invention can be readily understood, particularly in view of the convenient manner for ad'ustin the 'atherin elev D C;

ments 71 and 72, as well as thesurfacing blade 122, and although the preferred embodiment of the invention is as illustrated and described, yet changes inthe details of construction can be had which will fall within the scope of the invention as claimed.

1. A machine for the purpose set forth comprising a body portion, a bolster there-- for, a pair of supporting wheels, steering knuckles pivotally connected to'the bolster and having said wheels revolvably mount-- ed thereon, means for simultaneously shift ing said knuckles, a pair of independently adjustable oppositely inclined forwardly extending gathering elements arrangedbelow and connected with said body portion, a horizontally disposed angularly adjustable surfacing blade arranged rearwardly of said elements, and a spring controlled holding-down device for said blade. j

2. A machine for the purpose set forth comprising a body portion, a bolstertherefor, a pair of supporting wheels, steering knuckles pivotally connected to the bolster and having said wheels revolvably mounted thereon, means for simultaneously shifting said knuckles, a pair of independently adjustable oppositely inclined forwardly extending gathering elements arranged below and connected with said body portion,v a horizontally disposed angnlarly adjustable surfacing blade arranged rearwardly of said elements, and an adjustable spring controlled holding-down device for said blade. r i l 3. A machine for the purpose set forth comprising a body portion,a bolster there-- for, a pair of supporting wheels, steering knuckles pivotally" connected to the bolster and having said wheels revolvably mounted thereon, means for simultaneously shifting said knuckles, a pair of independently adjustable oppositely inclined forwardly extending gathering elements arranged below and connected with said body portion, a horizontally disposed angularly adjustable surfacing blade arranged rearwardly of said elements. a pair of oppositely extending up wardly inclined strut rods pivotally connected to said elements and slidably connected with said body portion, and adjustable stop elements carried y said strut bars for arresting movement thereof in one direc tion. a

4. A machine for the purpose set forth comprising abody'portion, a bolster therefor, a pair of supporting wheels, steering knuckles pivotally connected to the bolster and having said wheels revolvably mounted thereon, means for simultaneously shift ing said knuckles, a pair of independently adjust-able oppositely inclined forwardly extending gathering elements arranged below and connected with said. body portion, a horizontally disposed angularly adjustable surfacing blade arranged rearwardly of said elements, a spring controlled holding-down device for said blade, a pair of oppositely extending upwardly inclined strut rods pivotally connected to said elements and slidably connected with said body portion, and adjustable stop elements carried by said strut bars for arresting movement thereof in one direction.

5. re machine for the purpose set forth comprising a body portion, a bolster therefor, a pair of supporting wheels, steering knuckles pivotally connected to the bolster and having said wheels revolvably mounted thereon, means for simultaneously shift ing said knuckles, a pair of independently adjust-able oppositely inclined forwardly extending gathering elements arranged below and connected with said body portion. a horizontally disposed angularly adjustable surfacing blade arranged rearwardly of said elements, an adjustable spring con trolled holding-down device for said blade, :1 pair of oppositely extending upwardly inclined strutrods aivotally connected to said elements and slidably connected with said body portion, and adjustable stop elements carried by said strut bars for arresting movement thereof in one direction.

6. A machine for the purpose. set forth comprising a body portion, a bolster therefor, a pair of supporting wheels, steering knuckles pivotally connected to the bolster and having said wheels revolvably mounted thereon, means for simultaneously shifting said knuckles, a pair of independently adjustable oppositely inclined forwardly extending gathering elements arranged below and connected with said body portion, a horizontally disposed angularly adjustable surfacing blade arranged rearwardly of said elements, a pair of oppositely extending upwardly inclined strut bars pivotally connected to said elements and slidably con nected with said body portion, adjustable stop elements carried by said strut bars for arresting movement thereof in one direction, and means at the forward end of said body portion for attaching it at one or more levels to a traction means.

7. A machine for the purpose set forth comprising a portable body portion, a bolster therefor, a pair of supporting wheels, steering knuckles pivotally connected with the bolster and having said wheels revolvably mounted thereon, means for simultaneously shifting the steering knuckles, a pair of independently adjustable oppositely inclined forwardly extending gathering ele ments arranged below and connected with said body portion, a connecting bar arranged at the rear of and having a universal pivotal connection with each of said elements, brace members between said bar and said bolster, and a horizontally disposed angularly adjustable surfacing blade arranged rearwardly of said elements and connected with said l3? and body portion.

8. A machine for the purpose set forth comprising a portable body portion, a bolster therefor, a pair of supporting wheels, steering knuckles pivotally connected with the bolster and having said wheels revolvably mounted thereon, means for simultaneously shifting the steering knuckles, a pair of independently adjustable oppositely inclined forwardly extending gathering elements arranged below and connected with said body portion, a connecting bar arranged at the rear of and having a universal pivotal con nection with each of said elements, brace members between said bar and said bolster, a horizontally disposed angularly adjustable surfacing blade arranged rea1\\'a1dly of said elements and connected with said bar and body portion, a pair of oppositely extending strut bars pivotally connected to said elements and slidably connected to s body portion, and adjustable stops carr by said strut bars for arresting movement thereof in one direction.

9. A. machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion, means carried by the body portion and connected with said elements for vertically adjusting them independently of each other, a horizontally disposed surfacing blade arranged rearwardly of said elements to act on material gathered by said elements, a connecting bar, a universal pivotal connection between the rear end of each of said elements and said bar, an extension member projecting rearwardly from and pivotally connected to said bar, a pivotal connection l etween said blade and said member, and means connected to the blade and bar for angularly adjusting said blade on its pivot.

10. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion, means carried by the body portion and connected with said elements for vertically adjusting them independently of each other, a horizontally disposed surfacing blade arranged reaiwmrdly of said elements to act on material gathered by said elements, it connecting bar, a universal pivotal connection between the rear end of each of said elements l'illi and said bar, an extension member project ing rearvvardly from and pivotally connected to said bar, a pivotal connection between said blade and said member, means connected to the blade and bar for angularly adjusting said blade on its pivot, and a spring controlled holding-down device for said blade connected with the body portion and with said member.

11. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion, means carried by the body portion and connected with said elements for vertically adjusting them independently of each other, a horizontally disposed. surfacing blade arranged rearwardly of said elements to act on material gathered by said elements, a connecting bar, a universal pivotal connection between the rear end, of each of said elements and said bar, anextension member projecting rearwardly from and. pivotally connected to said bar, a pivotal connection be tween said blade and said member, means connected to the blade and bar for angularly adj listing said blade on its pivot, and an adjustable spring controlled holding-down device for said blade connected with said member and body portion.

12. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion, means carried by the body portion and connected with said elements for vertically adjusting 'them independently of each-other, a horizontally disposed surfacing blade arranged rearwardly of said elements to act on material gathered by said elements, a connecting bar, a universal pivotal connection between the rear end of each of said elements and said bar, an extension member projecting rearwardly from and pivotally connected to said bar, a pivotal connection between said blade and said member, means connected to the blade and bar for angularly adjusting said blade on its pivot, and means carried by the body portion and connected with said member for elevating and lowering said. blade. 7

13. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion, means carried by the body portion and connected 7 with said elements for vertically adjusting them independently of each other, a h0ri zontally disposed surfacing blade arranged .rearwardly of said elements to act on ma terial gathered by said elements, a connecting bar, a universal pivotal connection between the rear end of each of said elements and said bar, an extension member projecting rearwardly from and pivotally connected tosaid bar, a pivotal connection between said blade and said member, means connected to the blade and bar for anguarly adjusting said blade on its pivot, a spring controlled holding-down device for said blade connected with the body portion and with said member, and means carried by the body portion and connected with said member for elevating and lowering said blade.

14-. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements ar'anged below said body portion, means carried by the body portion and connected with said elements for vertically adjusting them independently of each other, a horizontally disposed surfacing blade arranged rearwardly of said elements to act on material. gathered by said elements, a connecting bar, a universal pivotal connection be tween the rear end of each of said elements and said bar, an extension member projecting rearwardly from and pivotally connevted to said bar, a pivotal connection between said blade and said member, means connected to the blade and bar for angularly adjusting said blade on its pivot, an adjustable spring controlled holding-clown device for said blade connected with said member and body portion, and means carried by the body portion and connected with said membor forelevating and lowering said blade.

'15. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion,- means carricd by the body portion and connected with said elements for vertically adjusting them independently of each other, a horizontally disposed surfacing blade arranged rearwardly of said elements to act on material gathered by said elements, a connecting bar, a universal pivotal connection be tween the rear end of each of said elements and. said bar, an extension member projecting rearwardly from and pivotally connected to said bar, a pivotal connection between said blade and said member, means connected to the blade and bar for angularly adjusting said blade on its pivot, a pair of oppositely extending upwardly inclined strut bars pivotally connected to said elements and slidably connected to the body portion, and adjustable elements carried by said strut bars for limiting the movement thereof in one direction.

16. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion, means carried by the body portion and connected with said elements for vertically adjusting them independently of each other, a horizontally disposed surfacing blade arranged rearwardly of said elements to act on material gathered by said elements, a connecting bar, a universal pivotal connection between the rear end of each of said elements and said bar, an extension member projecting rearwardly from and pivotally connected to said bar, a pivotal connection between said blade and said member, means connected to the blade and bar for angularly adjusting said blade on its pivot, a spring controlled holding-down device for said blade connected with the body portion and with said member, a pair of oppositely extending upwardly inclined strut bars pivotally connected to said elements and slidably connected to the body portion, and adjustable stop elements carried by said strut bars tor limiting the movement thereon in one direction.

17. A machine for the purpose set forth comprising a portable body portion, a pair of oppositely inclined gathering elements arranged below said body portion, means carried by the body portion and connected with said elements for vertically adjusting; them independently o't each other, a horizontally disposed surfacing blade arranged rearwardly of said elements to act on material gathered by said elements, a connecting bar, a universal pivotal connection between the rear end of each o't said elements and saidv bar, an extension member projecting rearwardly from and pivotally connected to said bar, a pivotal connection be tween said blade and said member, means connected to the blade and bar for angularly adjusting said blade on its pivot, an adjustable spring controlled holding-down device for said blade connected with said member and body portion, a pair of oppositely extending upwardly inclined strut bars pivotally connected to said elements and slidably connected to the body portion. and adjustable stop elements carried by said strut bars, for limiting the movement thereof in one direction.

18. A machine for the purpose set forth comprising a portable body portion, a pair or" oppositely inclined gathering elements arranged below said body portion, means iarried by the body portion and connected with said elements for vertically adjusting them independently of each other, a horizontally disposed surfacing blade arranged rearwardly of said elements to act on ma terial gathered by said elements, a connecting bar, a universal pivotal connection between the rear end of each o'lsaid elements and said bar, an extension member proiectinn; rearwardly from and pivotally connected to said bar, a pivotal connect-ion between said blade and said member, means connected to the blade and bar for angular-1y adjusting said blade on its pivot, a spring (Onll'OllGtl holding-down device for said blade connected with the body portion and with said member, a pair of oppositely extending strut bars pivotally connected to said elements and slidably connected to the body portion, and adjustable stop elements carried by said strut bars tor limiting the movement thereof in one direction.

In testimony whereof. I atiiX my signature hereto.

ALBERT J. JULSON. 

